Alice1885
32 Cal
Walking eagle, I am a contemporary builder. I built a convertible rifle last year using the small Siler Flintlock Lock and the small Siler Percussion lock. The drum and vent liner are the exact same size, diameter and thread pitch. The locks interchange with absolutely no problems. I had to do no trigger modifications and I am using a double set trigger. The sear locations were the exact same on my 2 locks. Perhaps just lucky ? Not sure but it worked with no problems. Just giving you my experience. Actually it is more critical getting the percussion lock in the proper place, u must support the drum with the bolster on the percussion lock. The vent liner location is not as critical. If you have the Chambers Golden Age lock it is slightly larger than the Siler large lock and therefore this lick would not interchange with the large siler percussion. You can get the exact lock plate measurements on the track of the wolf website.
Good day.
Good day.